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3.73"s or ?????

Old 04-11-2006, 08:11 PM
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Default 3.73"s or ?????

When I bought the car I was told it had 3.73's but now I talked the old owner and he is saying that he does not rmember if he put gears into the car or not. How can i tell what gears do I have? Whats the best gear to go with for 1/4 mile racing anf street driven? thanks to any and all that can help.
Old 04-11-2006, 08:33 PM
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if it is all track go with 3.73's or 4.10's, if it is daily driver i think 3.42's or maybe 3.73's would be ok. im about to do 3.42's so i will be able to tell you soon. as for telling, what mph do you run at like 70-80?
Old 04-11-2006, 08:37 PM
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Originally Posted by imnotplutonium
if it is all track go with 3.73's or 4.10's, if it is daily driver i think 3.42's or maybe 3.73's would be ok. im about to do 3.42's so i will be able to tell you soon. as for telling, what mph do you run at like 70-80?
At about 70 I am about 2600 rpm .
Old 04-12-2006, 12:34 PM
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Doesn't remember? Probably didn't then. To get the speedo correct he would've had to program it for new gears too. Get someone on the highway next to you at 70 MPH on their speedo, write down your RPMs, then check it against a calculator like www.f-body.org/gears/
Old 04-13-2006, 11:46 AM
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I've got a set of 3:42's in my auto car. It is ok while just driving around, when you start pushing it to get around someone it will grab second and I hate that so I am going to step up to 3:73's and see if that will solve it. If not I have a st of 4:10's in the garage out of my monte. Right now with the 3:42's and mods it gets about 19-20 on the highway.


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